Many different materials are used and specific material call-outs are crucial for this industry. Gaskets require certificates of conformance, including batch numbers and cure dates with full traceability.
Nitrile and Viton™ (FKM), are commonly used materials because of their oil and fuel resistance. EPDM is commonly used for door seals and graphite/non-asbestos materials can be used in the combustion areas of an engine. Silicone is also used for high temperature applications.
Spiral wound, metal graphite and PTFE gaskets provide superior performance for highly corrosive and high temperature applications.
Cork, Neoprene, EPDM, and Nitrile materials can be used for sealing and ventilating electrical enclosures, circuit board support pads, mounting, switchgear and transformer components.
Silicone is used frequently as it is stable at high temperatures and also inhibits bacterial growth. For steam or other high pressure applications, non asbestos and/or graphite material may also be used. Other materials include FDA approved elastomers including EPDM and PTFE which offers chemical and UV resistance, and other white food grade rubbers.
Oil & Gas
High temperature and high pressure environments require special materials including spiral wound, ring type and non-asbestos materials.
Silicone and PTFE are the most commonly used materials for drug processing and conveyor belting. These materials provide a clean environment and low bacterial growth.
Shaft seals, valve seals and packings are made from Neoprene and EPDM. Nitrile, Viton™ (FKM), PTFE, and non-asbestos materials can also be used for more corrosive applications.
EPDM, Nitrile, non-asbestos, and Viton™ (FKM) are commonly used for manway gaskets to seal against fuel, oil and water.
NSF / ANSI 61 Certified gasket material is the preferred choice in the potable water industry. Other materials used include Red Rubber (SBR) and compressed non-asbestos for waste water services.